Medium severity · published Sep 20, 2017
CVE-2016-8738
In Apache Struts 2.5 through 2.5.5, if an application allows entering a URL in a form field and the built-in URLValidator is used, it is possible to prepare a special URL which…
5.9
CVSS
3.3%
EPSS
No
On KEV
Description
In Apache Struts 2.5 through 2.5.5, if an application allows entering a URL in a form field and the built-in URLValidator is used, it is possible to prepare a special URL which will be used to overload server process when performing validation of the URL.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.3% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ST
Struts · Apache
2.5; 2.5.1; 2.5.2; 2.5.3; 2.5.4; 2.5.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-8738
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-8738
Third Party Advisory
http://www.securityfocus.com/bid/94657
security.netapp.com
https://security.netapp.com/advisory/ntap-20180629-0003/
Mitigation
https://struts.apache.org/docs/s2-044.html
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